Indiana Code Title 5. State and Local Administration § 5-8-6-6

(1) obtains information concerning the death of an officeholder of a county, city, town, township, or school corporation not subject to section 4 of this chapter;  and

(2) is reasonably satisfied that the information described in subdivision (1) is true;

(1) the person who must give notice of any meeting or caucus required to fill the vacancy caused by the death;  or

(2) if a meeting or caucus is not required to fill the vacancy, the person who has the power to fill the vacancy.